<?php  if(count($lista_files_images)>0): 
    ?>
<div style="width: 610px; height: 500px; border: 1px solid blue; margin: -9px auto; overflow:auto;">


   <?php for($i=0;$i<count($lista_files_images);$i++){ ?>
    <div style="float: left; width: 285px; height: 250px;">


<img src="data:image/jpg;base64,<?php echo $lista_files_images[$i] ?>"
     alt="Base64 encoded image" width="280" height="200"/>


  </div>
         <?php } ?>
 </div>
 <?php endif; ?>